Set dial to . Touch the black probe to ground and the red probe to the power source. Continuity
: Inspect test leads for fraying or broken wires.
: The red lead plugs here for most voltage and resistance tests. 10A : Used strictly for high-current measurements. 3. Operational Guide Measurement Type Setup & Procedure Voltage (DC) Mac Tools Et 130 Manual
Set dial to the . The meter will beep if a continuous path exists (0 ohms). Resistance
: Check the internal fuse; blown fuses are common if the red lead was incorrectly placed in the 10A port during a voltage check. Set dial to
: Ensure you are using the correct fuse replacements (typically 10A/250V) to prevent damage to the unit or vehicle electronics.
Set dial to the . Used to check the health of alternators or charging system components. 4. Maintenance and Storage : The red lead plugs here for most
: Avoid using the meter in high-humidity environments or near explosive gases. 2. Controls and Layout